After you have Installed Vesta on your server and logged in with the admin username and password in /root/details.txt, you will want to add your first user account.
Step 1: Log into Vesta at IP:8083 as admin
Step 2: Click the User link in the top left of the navigation bar if not already on the User page.
Step 3: Click the green + just below the User heading
Step 4: Fill in the details as indicated:
Package is the type of account, they can be created/edited in the Packages link at the left of the top navigation bar.
Step 5: Click Add — an email will be sent to the address indicated with the login details provided
Step 6: Log in (or have the user log in) to their client account control panel:
From there, the user account can click the green + to add a web domain, or click through the other options and add them accordingly.